168889180

素因数分解:

$2^2\times 5^1\times {\mathrm{1229}}^1\times {\mathrm{6871}}^1$

素因数の和:8109

約数の個数: 24

約数和(自身を含む): 355007520

約数和(自身を除く): 186118340

約数列:

[1, 2, 4, 5, 10, 20, 1229, 2458, 4916, 6145, 6871, 12290, 13742, 24580, 27484, 34355, 68710, 137420, 8444459, 16888918, 33777836, 42222295, 84444590, 168889180]

約数ペア:

[(1, 168889180), (2, 84444590), (4, 42222295), (5, 33777836), (10, 16888918), (20, 8444459), (1229, 137420), (2458, 68710), (4916, 34355), (6145, 27484), (6871, 24580), (12290, 13742)]